/* =========================================================
   GE-LAV Course Site Custom Styles
   Palette: Navy #1E3A5F + Gold #C89B3C (matches slide deck)
   ========================================================= */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Serif+Pro:ital,wght@0,400;0,600;0,700;1,400&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---- CSS Variables ---- */
:root {
  --gelav-navy: #1E3A5F;
  --gelav-navy-light: #2E4B7A;
  --gelav-navy-dark: #142845;
  --gelav-gold: #C89B3C;
  --gelav-gold-light: #E0B85C;
  --gelav-gold-dark: #A07A28;
  --gelav-bg: #FAFAF7;
  --gelav-text: #1A1A1A;
  --gelav-text-muted: #555;
  --gelav-border: #E5E5E0;
  --gelav-code-bg: #F4F1EA;

  --font-serif: 'Source Serif Pro', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
}

/* ---- Base typography ---- */
body {
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.65;
  color: var(--gelav-text);
  background: var(--gelav-bg);
  font-feature-settings: "kern" 1, "liga" 1, "onum" 1;
}

/* Headings in sans-serif for clean modern feel */
h1, h2, h3, h4, h5, h6,
.sidebar-title, .navbar-title, .sidebar-item-text {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--gelav-navy);
  letter-spacing: -0.01em;
}

h1.title {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 0.5rem;
  position: relative;
  padding-top: 1rem;
}

/* Gold accent bar above the page title */
h1.title::before {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: var(--gelav-gold);
  margin-bottom: 1.25rem;
  border-radius: 2px;
}

.subtitle {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--gelav-text-muted);
  font-style: normal;
  margin-bottom: 1.5rem;
}

/* ---- Section heading numbers ---- */
.header-section-number {
  color: var(--gelav-gold);
  font-weight: 500;
  margin-right: 0.5em;
  font-feature-settings: "tnum" 1;
}

h2 {
  font-size: 1.7rem;
  margin-top: 2.5rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--gelav-border);
}

h3 {
  font-size: 1.35rem;
  margin-top: 2rem;
  color: var(--gelav-navy-light);
}

/* ---- Links ---- */
a {
  color: var(--gelav-navy);
  text-decoration: underline;
  text-decoration-color: var(--gelav-gold);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
a:hover {
  color: var(--gelav-gold-dark);
  text-decoration-color: var(--gelav-navy);
}

/* ---- Author/byline block ---- */
.quarto-title-meta {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  border-top: 1px solid var(--gelav-border);
  border-bottom: 1px solid var(--gelav-border);
  padding: 1rem 0;
  margin: 1.5rem 0 2rem 0;
}
.quarto-title-meta-heading {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.7rem;
  color: var(--gelav-text-muted);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

/* ---- Sidebar (left navigation) ---- */
.sidebar {
  background: white;
  border-right: 1px solid var(--gelav-border);
}

.sidebar-navigation .sidebar-item a {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--gelav-text);
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  text-decoration: none;
}
.sidebar-navigation .sidebar-item a:hover {
  background: var(--gelav-code-bg);
  color: var(--gelav-navy);
}
.sidebar-navigation .sidebar-item a.active {
  background: var(--gelav-navy);
  color: white;
  font-weight: 500;
}

/* Sidebar section labels (Course Foundations, Assessments, etc.) */
.sidebar-item-section > .sidebar-item-container > a {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.78rem !important;
  color: var(--gelav-text-muted) !important;
  margin-top: 1rem;
}

/* ---- Right TOC ---- */
#quarto-margin-sidebar .nav-link {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--gelav-text-muted);
  border-left: 2px solid transparent;
  padding-left: 0.75rem;
}
#quarto-margin-sidebar .nav-link.active {
  color: var(--gelav-navy);
  border-left-color: var(--gelav-gold);
  font-weight: 500;
}

/* ---- Code blocks ---- */
pre, code {
  font-family: var(--font-mono);
}
code {
  font-size: 0.9em;
  background: var(--gelav-code-bg);
  color: var(--gelav-navy-dark);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}
pre {
  background: var(--gelav-navy-dark) !important;
  color: #E8E8E0;
  padding: 1.1rem 1.3rem;
  border-radius: 6px;
  border: none;
  font-size: 0.9rem;
  line-height: 1.55;
}
pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

/* ---- Blockquotes ---- */
blockquote {
  border-left: 4px solid var(--gelav-gold);
  background: var(--gelav-code-bg);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--gelav-text);
}

/* ---- Tables ---- */
table {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  border-collapse: collapse;
  width: 100%;
  margin: 1.5rem 0;
}
thead {
  background: var(--gelav-navy);
  color: white;
}
thead th {
  padding: 0.7rem 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
tbody tr {
  border-bottom: 1px solid var(--gelav-border);
}
tbody tr:nth-child(even) {
  background: var(--gelav-code-bg);
}
tbody td {
  padding: 0.6rem 1rem;
}

/* ---- Callouts ---- */
.callout {
  border-radius: 6px;
  border-left-width: 4px;
}
.callout-note { border-left-color: var(--gelav-navy); }
.callout-tip { border-left-color: var(--gelav-gold); }
.callout-important { border-left-color: #C0392B; }
.callout-warning { border-left-color: #E67E22; }

/* ---- Math (KaTeX/MathJax) ---- */
.math.display, .MathJax_Display {
  font-size: 1.05em;
  margin: 1.25rem 0;
}

/* ---- Buttons & badges ---- */
img[alt*="badge"], img[src*="shields.io"], img[src*="mybinder.org/badge_logo"] {
  height: 22px;
  vertical-align: middle;
  margin-right: 4px;
}

/* ---- Footer ---- */
.nav-footer {
  background: var(--gelav-navy-dark);
  color: #B8B8B0;
  border-top: 4px solid var(--gelav-gold);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  padding: 1.5rem 0;
}
.nav-footer a { color: var(--gelav-gold-light); }
.nav-footer a:hover { color: white; }

/* ---- Print ---- */
@media print {
  .sidebar, #quarto-margin-sidebar, .nav-footer { display: none; }
  body { background: white; font-size: 12pt; }
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  h1.title { font-size: 1.75rem; }
  body { font-size: 16px; }
}



/* =========================================================
   liquidityillusion.com CTA styles
   ========================================================= */

/* Navbar gold pill button */
.navbar .gelav-cta {
  background: var(--gelav-gold);
  color: white !important;
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none !important;
  margin-left: 0.5rem;
  display: inline-block;
  transition: background 0.15s ease, transform 0.15s ease;
  letter-spacing: 0.01em;
}
.navbar .gelav-cta:hover {
  background: var(--gelav-gold-dark);
  color: white !important;
  transform: translateY(-1px);
}

/* Homepage hero CTA block */
.gelav-hero-cta {
  background: linear-gradient(135deg, var(--gelav-navy) 0%, var(--gelav-navy-dark) 100%);
  color: white;
  padding: 1.75rem 2rem;
  border-radius: 8px;
  margin: 2rem 0 2.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  border-left: 6px solid var(--gelav-gold);
}
.gelav-hero-cta-text { flex: 1; min-width: 280px; }
.gelav-hero-cta-text h3 {
  color: white !important;
  margin-top: 0;
  margin-bottom: 0.35rem;
  font-size: 1.25rem;
  border: none;
}
.gelav-hero-cta-text p {
  margin: 0;
  color: #E5E5E0;
  font-family: var(--font-sans);
  font-size: 0.95rem;
}
.gelav-hero-cta-button {
  background: var(--gelav-gold);
  color: white !important;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none !important;
  white-space: nowrap;
  transition: background 0.15s ease, transform 0.15s ease;
  font-family: var(--font-sans);
}
.gelav-hero-cta-button:hover {
  background: var(--gelav-gold-light);
  color: var(--gelav-navy) !important;
  transform: translateY(-1px);
}

/* Inline session-page callout */
.gelav-product-callout {
  background: #FAF7F0;
  border-left: 4px solid var(--gelav-gold);
  padding: 0.9rem 1.15rem;
  margin: 1.5rem 0;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
}
.gelav-product-callout strong { color: var(--gelav-navy); }
.gelav-product-callout a {
  font-weight: 600;
  white-space: nowrap;
}